Reproducing apparatus for phonographs and the like



. C. HANSON 'REPRODUCING APPARATUS FOR PHONQGRAPHS AND THE LIKE Filed Jan. 19, 1926 SOUND HORN A TTORNEYS.

Passes 20, 1929.

nivirao STATES.

near. 0. anson, or onrcaeo, rumors I REPBOD'UCING APPARATUS FOR FHONOGRAPl-IS AND THE LiKE- Application filed January 19, 1926. SerialNo. 82,246.

I i 1 My invention relates broadly to apparatus for the reception and reproduction of sound modulated radio energy and more part-1cm larly to theu'se of such apparatus 1n con 1 nection with radio phonographs.

, One of the objects of myinvention is to provide an form a part of the furnishing of a room ina home, a club, or other building and receive and reproduce lectures, entertainments, and grand opera, broadcasted by radio telephony. I a I Another object of my invention is to pro vide means for combiningsuch a radio re; ceiving equipment with the usual construc' tion of phonograph.

A further object of my inventionjsto provide means for adapting the usual. phono graph for producing an increased volume of sound by employing a thermionic vacuum tube amplifier introduced between the tone arm and the amplifying horn of a phonoa h. i A? still further object of the invention is to provide means in a unit apparatus fo reproducing sound records as in the, case of the present phonograph or for reproducing sound from the'records at an increased volume by vacuum tube amplification or for utilizing the sound I phonograph in association with the rad o apparatus for directing the received radio signals to an audience.

A still further object of the invention is to provide control means for modifying the volume of reproduced sound.

Other and further objects of my invention will be understood from the following specification and by examination of the ac- 0 companying drawings in which:

Fig. 1 1s a form of radio phonograph employing an Art Style or Per od case design-cabinet in association with an an tenna system concealed withina room' dec-.

oration;

Fig. 2 is a f of the radio phonograph shown in Fig. 1 and the electrical connections employed therein.

The invention con'iprises broadly a phonograph cabinet which may if desired be oi? artistic design and which. forms a part of the furnishing of a club or other building room out a home and includes within the cabinet the phonograph mechanism anda artistic apparatus which may news, music, sermons,

amplifying horn of a.

ragmentary-viewof a part .radio receiving apparatus. A loop antenna is employed as a collector of radio wave energy. The collector is connected to radioapparatus within the cabinet which may comprise a radio frequency vacuum tube amplitier, avacuum tube detector and an audio fre uency vacuum tube amplifier having a. lou speaking. telephone connected in its output circuit. The telephone receiver is arranged to'direct the reproduced sound thru the sound amplifying horn of the phonograph. -Means is provided for contr'olling the.volume of reproduced sound. The radio: phonograph may also include a 7 vacuum tube amplifier which maybe electrically connected between the tone arm and the sound amplifyingrhorn by which the sound may be reproducedat"increased vol- Jrected thru the sound amplifying horn. The radio wave energy collecting means may 7 be of any typefsuch as the resonant co 5 open antenna and'JgrQund or'counterpoise 3 underground antenna or loop collector.

Fig. 1 represents a form of radio phono graph in which an .Art Style or Period case design cabinet 45'is employednas an inclosure for a phonograph or a radio receivin installation. The cabinetis arran ed in'di ferent sections as forexample, the phonos graph is contained in'section 47 .and the radio receiver with the thermionic vacuum 95. tube amplifier in section 46, while the battcries for supplying the plate potential for the thermionic vacuum tubes and the stor age battery with rectifier for supplyingthe vfilament heating current are contained in 9 section 48.' Connections 50 and 51 are pro vided upon the cabinet for connectionto any form of radio wave energy'collector; The particular form shown-comprises aloop collector 52, which is mounted 'withinand concealed by. the floor lamp 53. This form of antenna. has been selected byreason of its attractive appearance in association with the Art Style oiflPeriod-case design a paratus; The loop 52 is mounted within t shade 55, and is adapted to be rotated to secure the desired position relative to the distant broadcasting station. The leads from the ends of the loop may be taken through the pedestal of the lamp as indicated at 54 and provided with terminals which are connected through flexible conductors with the terminals 50 and 51 of the Period Style cabinet. This arrangement of equipment produces a pleasing effect for a resident installation.

The mechanical arrangement and electrical wirin of the radio phonograph repre-.

The casting 65 is provided with a connec-.

tion to a telephone transmitter 68. This transmitter receives the sound vibrations eonveyed through the tone arm 63. The transmitter is electrically connected by conductors 69 through battery 71 with primary winding 7 O of a transformer. The secondary winding 72 is connected to terminals of a double'pole double throw switch 60. The switch blades are connected to the input circuitof a vacuum tube amplifier including the thermionic vacuum tube 74. The output circuit of the amplifier includes the loud speaker telephone receiver 75. The telephone receiver 75 is securedtothe casting and is arranged to direct the reproduced 'sound through the soundamplifying horn 76. Within the casting 65 and intermediate the mechanical mountings of the telephone transmitter 68 and the, telephone receiver 75 is provided a butterfly valve 66. The butterfly valve is rotatable by means of control 67 and in its horizontal position cuts off the acoustic con nection between the sound box 62 and the sound amplifying horn 76. In the verti cal position of the butterfly valve the sound passes from the sound boX to the sound amplifying horn without obstruction. The butterfly valve is normally in the vertical position when the phonograph is employed independently of the other apparatus in the cabinet.

When it is desired to reproduce the sound at increased volume, the butterfly valve 66 is rotated to a horizontal position and switch 60 is thrown to the right completing the circuit from the telephone transmitter 68 through the transformer 70 and 72 and through the vacuum tube amplifier represented at 74. The loud speaker telephone receiver 75 directs the,music or other sounds at large volume into,the amplifying horn 76.

The cabinet is employed as a reproducer of the received radio signals when the switch 60 is thrown to the left contacting with terminals 59 and 59*. These terminals are connected to the secondary winding 59 of a transformer 58. The primary winding 57' oft-he transformer 58 connects to terminals 41 and .42 which are the terminals of the output circuit of the receiving apparatus.

With the switch thrown to the left the energy received by radio is conveyed through amplifier 74 and actuates the loud speaking telephone receiver 7 5' directing the reproduced sound through the sound amplifying horn 76. During the operation of the apparatus as a reproducer of received radio signals, the stylus upon the sound box 62 is removed from the phonograph record and the butterfly valve 66 is arranged in a hori- I reproduced by said phonographs through said sound amplifying horn, and additional means whereby radio signals are amplified, reproduced, and conveyed through said sound amplifyinghorn.

2. In an apparatus for the reproduction of sound the combination of a cabinet, a phono raph having a tone arm and a sound ampli ying horn therein, a' radio receiving apparatus, an amplifier, means for supplying power to the circuits of said amplifier, means for alternately operating said phonograph independently and in combination with said amplifier,'and means for conveying received radio signals through said sound amplifying horn.

3. In an apparatus for the reproduction of sound the combination of a cabinet, 2. phonograph having a tone arm and a sound amplifying horn, apparatus for receiving radio signals, a vacuum tube amplifier, electrical means associated with said phonograph and said amplifier whereby sound may be reproduced in association with or independently of said amplifier, and means whereby signals received by said radio apparatus may be conveyed through said sound amplifying horn.

4. In an apparatus for the reproduction of sound the combination of a cabinet, a. phonograph having a tone arm and a sound amplifying horn therein, a radio receiving apparatus in said cabinet, a vacuum tube manure amplifier, means between said tone arm and said sound' amplifying horn for conveying sound from said phonograph, actuating said amplifier and reproducing same through said sound amplifying horn, and means independent of said phonograph for conveying received radio signals through said amplifier and said sound amplifying horn.

5. In an apparatus for the reproduction of sound the combination of a cabinet, a phonograph having a tone arm and a sound amplifying horn, a radio receiving apparatus, a vacuum tube amplifier, mechanical means between said tone, arm and said sound amplifying horn for conveying sound from said phonograph directly to said sound amplifying horn, means for convert ing sound from said phonographinto electrical energy, amplifying said energy and rcproducing same through said sound amplifying horn, and means for conveying rccei \ed radio signals through said amplifier and sound amplifyinghorn.

6. In an apparatus for the reproduction of sound the combination of a cabinet, at phonograph having a tone arm and a sound amplifying horn, a radio receiving apparatus, a vacuum tube amplifier, means between said tone arm and said sound amplifying horn for alternately conveying reproduced sound directly into said amplifying horn and ,converting the sound into electrical energy and conveying said energy throu h said amplifier and said sound amplifying horn, and means for conveying received radio signals through said amplifier and through said sound amplifying horn.

7. In an apparatus for the reproduction of sound the combination of a cabinet, a plurality of compartments in said cabinet, at phonograph in one of said compartments, radio receiving apparatus in another of said compartments, a vacuum tube amplifier in one of said compartments, a source of electric energy in another of saidcompartments, a sound amplifying horn in another of said compartments, and means whereby said phonograph may operate independently of or in combination with said vacuum tube amplifier to convey sound through said sound amplifying horn and means whereby signals received by said radio apparatus may be conveyed horn.

8. In an apparatus for the reproduction through said sound amplifying of sound, the combination of a phonograph having a sound re reducing device and a sound amplifying evice, apparatus for receiving radio signals, a vacuum tube amplifier, electrical means associated with said phonograph and said amplifier whereby sound may be reproduced in association with or independently of said amplifier, and means whereby signals received by said radio apparatus may be conveyed through said sound amplifying device.

9. In an apparatus for the reproduction of sound, the combination of a phonograph having-a sound reproducing means and a sound amplifying device, apparatus for receiving radio signals,a vacuum tube' amplifier, means associated with said phono-.

by sound may be reproduced in association with or independently of said amplifier, and means whereby signals received by said radio apparatus may be amplified through said sound amplifying device.

i 11. In an apparatus for the reproduction of sound, a phonograph having reproducing means and a sound amplifying device, radio signal receiving apparatus, a vacuum tube name to this specification.

EARL Cl HANSON.

electrical means associated with said phonograph and said amplifier where-- times, and at other times for 

